Bolt



FIG. 1 is a side elevation of a bolt showing my new design;

FIG. 2 is an end elevation thereof;

FIG. 3 is a top plan view thereof;

FIG. 4 is a bottom plan view thereof;

FIG. 5 is a side elevation of a modified embodiment of the bolt illustrated in FIG. 1;

FIG. 6 is an end elevation thereof;

FIG. 7 is a top plan view thereof; and

FIG. 8 is a bottom plan view thereof. 

The ornamental design for a bolt, substantially as shown and described. 